221134234 has 4 divisors (see below), whose sum is σ = 331701354. Its totient is φ = 110567116.

The previous prime is 221134223. The next prime is 221134241. The reversal of 221134234 is 432431122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 169078009 + 52056225 = 13003^2 + 7215^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55283557 + ... + 55283560.

Almost surely, 2^221134234 is an apocalyptic number.

221134234 is a deficient number, since it is larger than the sum of its proper divisors (110567120).

221134234 is a wasteful number, since it uses less digits than its factorization.

221134234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110567119.

The product of its digits is 1152, while the sum is 22.

The square root of 221134234 is about 14870.5828399562. The cubic root of 221134234 is about 604.7167437541.

Adding to 221134234 its reverse (432431122), we get a palindrome (653565356).

The spelling of 221134234 in words is "two hundred twenty-one million, one hundred thirty-four thousand, two hundred thirty-four".